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With the28 Mhz band open again, I decide to have some fun running low power in the ARRL 10 Meter contest. In this 10 minute clip, I worked 4 US stations, Argentina and Brazil - using 2.5 W output from a late 70's vintage Ten Tec Argonaut 509. My antenna is a small (also "vintage") Wilson system 33 tri-band Yagi up 36 ft mounted on a roof tripod. |
From:
charangito
Views:
18
 1
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| Time: 10:42 | More in Science & Technology |
Vintage HAM Radio
QRP Contesting! K7HV qrp Argonaut 509 2011 ARRL 10 M Contest
1962 Heathkit AJ-41 AM/FM tube-type stereo tuner
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I replaced the electrolytic and paper capacitors and put on a new power cord |
From:
retrochad
Views:
1470
 14
ratings |
| Time: 10:01 | More in Science & Technology |
Vintage Hallicrafters SX-16 Super Skyrider Receiver For Sale
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This has since been sold, but I will leave the video up for reference. |
From:
Maxxarcade
Views:
1013
21
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| Time: 03:50 | More in Entertainment |
WD4AM Hallicrafters HT-37 & Globe Scout 680 Transmitters
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The Hallicrafter HT-37 is a great 100 watts transmitter SSB 100 watts, AM 25, CW 110 watts. The World Radio Labs Globe Scout 680 has 30 watts AM. Globe Scout 680 make a great little CW or Phone QRP rig. 73's WD4AM Mike D. McCoy Lenoir, NCUSA |
From:
MyRealmccoy
Views:
428
3
ratings |
| Time: 02:40 | More in Science & Technology |
Heathkit FM stereo generator IG-37
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This video shows a Heathkit FM stereo generator IG-37 working. You can see the stereo signal received on a Tecsum PL-380, also there is showed the composite signal audio (L+R, 19 KHz, LR double-sideband suppressed-carrier signal) in different cases: L channel, R channel with low pilot signal (mono) and high pilot signal (stereo). |
From:
ateijeiro0
Views:
674
2
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| Time: 01:56 | More in Science & Technology |
WD4AM Hallicrafters Model HT-41 Linear Amplifier
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Keep it here for more Radios & Music. 73's WD4AM Mike McCoy.................... Stay tune for Operation Blackhawk Broadcast Transmitters Part 3 Rescue....... |
From:
MyRealmccoy
Views:
153
2
ratings |
| Time: 04:05 | More in Science & Technology |
About Radio ... Part 15 Automatic Volume Control line, by Andy Davies.
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In this fifteenth video 'About Radio' I show you effect of driving a negative voltage from a battery into the avc line (automatic volume control line) of a radio. to get a better understanding of what's going on you should watch some of the other videos in the series. The radio I'm using in this series is the GEC model BC5645. Remember that you can kill yourself messing with electricity so don't do anything dumb! If this helps you please let me know. Kind regards ... Andy gw0jxm ~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~ In this series of 'About Radio' I want to show you a circuit diagram for a radio and talk you through what each component is there for. Here's the full link to 'About Radio ... Part 1. Removing the chassis.' www.youtube.com Here's the full link to 'About Radio ... Part 2. Data sheet and DC components.' www.youtube.com Here's the full link to 'About Radio ... Part 3. HT smoothing.' www.youtube.com HD Link to part 3 youtu.be Here's the full link to 'About Radio ... Part 4. AC ripple on the HT DC.' www.youtube.com HD link to part 4 www.youtube.com Here's the full link to 'About Radio ... Part 5. VHF input stage.' www.youtube.com HD link to part 5 www.youtube.com Here's the full link to 'About Radio ... Part 6. Grid bias & tank circuits.' www.youtube.com HD link to part 6 www.youtube.com Here's the full link to 'About Radio ... Part 7. A closer look at the tank circuit.' www.youtube.com HD link to part 7 www.youtube.com Here's the full link to 'About Radio ... Part 8 <b>...</b> |
From:
AndyDaviesByTheSea
Views:
44
4
ratings |
| Time: 03:59 | More in Science & Technology |
K1OIK demonstrates the Heathkit DX-20 transmitter
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